#include <stdio.h>
#include <string.h>

int main(void)
{
	char s1[ ] = "China", s2[80], s3[80];

	printf("length1 = %d\n", strlen("China"));
	strcpy(s2, "China");
	printf("length2 = %d\n", strlen(s2));
	strcpy(s3, s1);
	printf("length3 = %d\n", strlen(s3));

	return 0;
}